Cha p te r 4—HDR 203HD RS-232 Se ria l Co ntro l
Cha p te r 4
HDR 203HD RS-232 Se ria l Control
The HDR 203HD is the ruggedized version of the SR-W5U W-VHS recorder from JVC
Professional Products. The HDR 203HD has an RS-232 serial communications port for
remote control of its functions. This enables the device to receive data and instructions
from host applications, and to be explicitly controlled with commands sent via the serial
port from a computer (or ASCII terminal). This port is configured according to the Elec-
tronic Industries Association Standard RS-232-C published in August 1969.
Copies of this standard may be obtained by contacting:
Global Engineering Documents
15 Inverness Way
Englewood, CO 80112-5704.
(800) 854-7179 or (303) 397 7956
GED serves as the master distributor for ordering documents of the Electronic Industries
Association. The Association can be reached at:
Electronic Industries Association
2500 Wilson Boulevard
Arlington, VA 22201
Physically, the RS-232 port is a 9-pin D-Sub (DB9) connector.
Conne c ting the RS-232 Port
The ruggedized HDR 203HD may be explicitly controlled with ASCII Command Set
instructions sent via the RS-232 serial port from either a computer or an ASCII terminal.
The serial port is a female DB9 connector.
Serial port connection to the host requires a serial cable to connect to the host. This cable
is typically a standard “straight-through” cable, though if the HDR 203HD is connected
to a computer configured as a Data Communications Equipment (D.C.E.), you’ll need to
use a null modem cable (described later in this document). Make the cable connection
during the hardware installation sequence.
The serial port’s DB9 connector is configured as D.C.E., with the following signals and
pin correspondences to the the DB9 connector:
D-Sub 9 pin
Description
1
2
3
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Received Data
Transmitted Data
Page 6
October 26, 1998
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